Where can I buy an AT&T mobile proxy in the USA?

How much does an AT&T proxy cost?

Renting an AT&T port from FiftyStateProxy costs $3.75 a day, $15 a week or $45 for 30 days (October 2026 prices). A 7-day AT&T port costs the same as 4 one-day ports, so days five to seven add nothing to the bill. Weekly and monthly ports add the automatic rotation timer on top. Prices do not change with the carrier; see how much does an AT&T proxy cost for every plan.

How reliable is AT&T's mobile network in 2026?

Opensignal put AT&T first for time on network in January 2026, at 99.6%; Verizon scored 99.5% and T-Mobile 99.1%. For a proxy port, staying connected matters more than peak speed, because every dropped connection breaks the session running through it.

AT&T is not the speed leader. It took 1 Opensignal award, while T-Mobile took 12 and Verizon 3, over September 1 to November 29, 2025. Ookla's H1 2026 results named T-Mobile the fastest mobile network and Verizon the best for coverage. These figures describe AT&T's network, not a FiftyStateProxy port.

Is AT&T's mobile ASN different from its home internet ASN?

Yes. AT&T's mobile network is AS20057, while AT&T Fiber and its other fixed lines sit on AS7018. Hurricane Electric's BGP Toolkit counted 97,381,376 IPv4 addresses on AS7018 and 4,051,200 on AS20057 (checked 2026-10-05). AS7018 announces about 24 times more IPv4 addresses than AS20057, AT&T's mobile network.

The fixed side keeps growing. On February 2, 2026, AT&T closed its purchase of 95% of Lumen's Quantum Fiber for $5.75 billion.

• For an AT&T Mobility IP: rent an AT&T mobile port.
• For an AT&T Fiber home IP: buy US residential proxies with ASN targeting and add asn-7018.

Which brands use AT&T's mobile network?

AT&T's mobile network carries Cricket and FirstNet. Their traffic leaves through AT&T, so websites see it as AT&T mobile traffic.

Why do many AT&T users share one public IP?

Mobile networks put many subscribers behind each public IPv4 address. The method is called carrier-grade NAT (CGNAT), and RFC 6598 is the standard that reserves the 100.64.0.0/10 block for it. A website that blocks one shared address can shut out many real AT&T customers at once. Cloudflare reported in October 2025 that shared addresses hit rate limits roughly three times as often, so keep request rates moderate.

How do I get a new AT&T IP?

Hit the rotation link, or let the timer of a 7-day or 30-day port do it for you. New IP on demand by rotation link or API call, at most once every 30 seconds. On 7-day and 30-day ports, you can also set an automatic rotation timer, from every 2 minutes to every 24 hours. Otherwise your port keeps its IP until you rotate it, although the carrier can change it on its own from time to time. Each rotation reconnects your port to the carrier and usually takes 5–15 seconds; the carrier may occasionally hand back the same IP: just rotate again. The Node.js example below rotates the port and prints the new IP. For curl, Python and timer settings, see how to rotate a mobile proxy IP.

// Node 18+ with undici (npm i undici)
import { request, ProxyAgent } from "undici";

await request("https://fiftystateproxy.com/api/v1/mobile/{port}/rotate?key=API_KEY");          // ask AT&T for a new IP
await new Promise((done) => setTimeout(done, 15000));  // reconnect pause

const port = new ProxyAgent("http://USERNAME:PASSWORD@PORT_HOST:PORT");
const { body } = await request("https://api.ipify.org", { dispatcher: port });
console.log("AT&T exit IP:", await body.text());

When is AT&T the right carrier for a proxy?

Pick AT&T when a session must stay up for hours, such as running a client's social accounts or a long app test. Pick a T-Mobile proxy for raw 5G speed, or a Verizon proxy for coverage. The three carriers are compared line by line in T-Mobile vs AT&T vs Verizon proxies.